after trying to help them fight off a raid, the 5 of your entered a cave and found the jackpot of red stone, after the girls made echoes, the cave crumbled and rock knocked the bridge down, monika and natsuki made it, but you, yuri and sayori fell down the 1,000 foot cavern

Natsuki: YURI!!!

Monika: NORAH!!!

the three of you thankful landed in the water, but the force of the fall damaged something in you and you began to sink, but luckily yuri dived in and saved you

Yuri: please, wake up